Radiator fan sensor


Information and questions on GL1500 Goldwings (1988-2000)
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Tpawre
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Location: Derry, nh
Motorcycle: 1990 gl1500

Radiator fan sensor

Postby Tpawre » Wed Jan 21, 2015 10:32 pm



My 90 gl1500 has a toggle switch hooked up to the cooling fans, i think the previous owner took a shortcut. Anyone know where the sensor is located?



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spiralout
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Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Radiator fan sensor

Postby spiralout » Thu Jan 22, 2015 1:39 am

I've never changed the one on my 1500 but I think when I was in there last I noticed it on the right (inner) side of the left radiator.

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spiralout
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1996 GL1500 SE

Re: Radiator fan sensor

Postby spiralout » Thu Jan 22, 2015 1:41 am

That would be on the bottom of the left rad.

Tpawre
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Temp gauge sensor vs. fan switch sensor

Postby Tpawre » Thu Jan 22, 2015 10:49 pm

So i just got the info on the fan switch location, bottom of left radiator, my question now is since the fans dont come on when hot, except for toggle switch, i know its way hot cuz the temp gauge works. Someone please tell me they are operated from separate sensors! 1990 gl1500

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spiralout
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1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Temp gauge sensor vs. fan switch sensor

Postby spiralout » Fri Jan 23, 2015 9:29 am

They are operated from different sensors. The temp sensor is on the thermostat housing.

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lamasue
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Motorcycle: 2000 1500se

Re: Radiator fan sensor

Postby lamasue » Mon Jan 26, 2015 5:32 pm

my quess is he put it in because then he could have it on when he wants good in hot weather n.h you wont have to worry

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silverado6x6
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Re: Radiator fan sensor

Postby silverado6x6 » Tue Jan 27, 2015 8:11 am

It's possible the previous owner wired the switch in series and not in parallel which is the proper way to do it, and the left radiator must have a good ground wire. Sending unit for the fan is like described under the left radiator, the gauge sending unit is on the thermostat housing further up near the top rear of the radiators.
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WingAdmin
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Re: Radiator fan sensor

Postby WingAdmin » Tue Jan 27, 2015 12:16 pm

silverado6x6 wrote:It's possible the previous owner wired the switch in series and not in parallel which is the proper way to do it, and the left radiator must have a good ground wire. Sending unit for the fan is like described under the left radiator, the gauge sending unit is on the thermostat housing further up near the top rear of the radiators.


I don't know - I think I would wire it in parallel. That way, the sensor could turn the fan on when the engine got hot - even if you "forgot" to turn the switch on. If you want to force it on, you just flip the switch. In series, you run the risk of forgetting the switch is off (or having the switch fail!) and end up overheating your engine as a result.

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silverado6x6
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And 17 other bikes, 5 more Goldwings, 3 Ventures, 2 Vmax

Re: Radiator fan sensor

Postby silverado6x6 » Tue Jan 27, 2015 4:18 pm

Sorry if I was misunderstood, if in series you would only have control to turn it off completely, wired in parallel you can turn it on anytime the key is on, and it would also come on by the sender if it's working, that's what I do with both of my gl1500 bikes, but I use relays.


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